Stop-motion mechanism for fly frames



Juhe26, 1923. 1.4 0.141

' 'G. PUCCI 7 STOP MOTION MECHANISM FOR FLY FRAMES Filed Dec. 5 1922 Sheets-Sheet 1 June 26, 1923. 1,460,141

G. PUCCI STOP MOTION MECHANISM FOR FLY FRAMES Filed Dec. 5, 1.922 2 Sheets-Sheet 2 mmmml lllll m:ngmnnumnnm Patented June 26, 1923.

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STOP-MOTION MECHANISM FOR FLY Application filed December 5, 1922. Serial No. 605,111.

To all whom it may concern.

Be it known that I, GIACOMO PUcoI, a. citizen of the United States, residing at Vesterly, in the county ofVVashington and State of Rhode Island, have invented certain new and useful Improvements in Stop- Motion Mechanism for Fly Frames, of which the following is a specification.

My invention relates to fly frames and comprises improvements in stop motions for fly frames which operate when the cone belt of the differential mechanism breaks.

Whether the frame be bobbin lead or flier lead, great trouble has been experienced when the cone belt breaks. With a flier lead frame all the strands of roving on the frame are broken, and even in bobbin lead frames, the roving gets all. tangled up around the fliers before the operator notices it, and a general snarling up and breaking of the roving takes place, which takes a long time to straighten out.

One object of my invention is to shut of the driving power by shifting the shipper 2 ropl and drive belt on breakage of the cone be t.

A further object of my invention is to quickly and effectually brake the movable parts of the machine, and stop the machine; before the roving has a chance to get all snarled up.

A further object of my invention is to apply a double breaking mechanism, thereby doubly insuring the quick stopping of the movable parts, one element of my improved braking mechanism acting on the top cone shaft, and the other on the main drive shaft.

A further object of my invention is to provide an improved quick, even, resilient, braking means for braking machines of this sort.

A further object of my invention is to provide an improved trigger shaft release readily attachable to the already existing lower cone raising dotting means, and the lower cone support of any make of fly frame.

A further object of my invention is to gen-' erally improve upon devices of this nature by a provision of a strong, durable, efli-' cient and inexpensive construction.

A further object of my invention is to eliminate the necessity of having two cone belts on machines of this type.

.A further object of my invention is to provide an improved automatic means for resetting stop motions of this type.

These and such other features of my invcntion as may hereinafter appear will be best understood from .a description of one embodiment thereof, suchfas for instance, is shown in the accompanying drawings which illustrate an adaptation of my lnvention, to one type of fly frames.

In the drawings, Fig. 1, is a rear elevation of so much of the fly frame as is needed to illustrate my invention.

Fig. 2 is an end view of the same.

Fig. 3 is a fragmentary detailed view partially. in section along the lines 3-3 of Fig 1. 7'

Fig. 4 is an end view of a fly frame, showing a modified form. of braking means for controlling the main shaft.

Fig. 5 is a detailed view showing the means I employ for retaining the lower cone raising dotting mechanism in set position. r

Fig. 6 is a detailed view showing the means I employ for varying the throw of the shipper rod.

In the drawings, wherein like characters of reference indicate like parts throughout, 1. isthe frame of a fly frame. proximately equi-distantly with each other, and with the driving end frame support 2, along thefly frame are the supporting standards A. B, C. D. etc. These separate the frames into the sections A, B. C, D, etc... re-.

spectively. The section A (shown in Fig. 1, broken away) contains the differential. mechanism for decreasing the speed of the bobbins, as they become more fully wound in bobbin lead frames, the section. B contains the top and bottom cones of the differential mechanism and the lower cone raising means for dofiing, the section C (shown in Fig. 1 broken away) contains the builder, traversing and cone belt shifting mechanisms, the section D, my improved trigger shaft shifting mechanism.

The upper cone 3, is driven by the main drive shaft 4. through a suitable train of gearing at a constant speed. The upper cone 3, drives by means of the cone belt 5, the lower cone 6. A mechanism in section C (not shown) causes the cone belt 5, to shift to the right as the bobbins get built up, and as the lower cone through. a train of gear- Spaced aping drives the differential mechanism in section A (not shown) at a gradually reduced speed, the bobbins are driven at a decreasing speed as they are built up. The weight of the lower cone 6, which is normally made of metal usually rests on the cone belt 5. The lower cone 6, is supported by the lower cone support 7, fulcrumed on a connecting bar 8 of the frame 1. The reason that the lower cone is pivotally supported is that it is desirable to raise the lower cone, and to run the ends slack for doflinp; purposes. The lower cone support is raised as follows, a lever 11, with a handle 12, is pivotally supported on an arm 13, extending .from the top plate 10 of the frame 1. The

work arm 15, of this lever is provided with notches 14, for engagement-with a pawl 16, mounted on the arm 13. WVhen the handle 12 is shifted to raise the lower cone 6, the pawl 16, locks the lever 15, in raised position for dotting purposes. A lifting rod 17, is connected to the end of the work arm 15. This rod may be directly connected to the lower cone support 7. to raise it for define; purposes. However, I have provided means to allow the lower cone support 7. to drop sufliciently to trip the tripping lever 20, without disturbing" the dotting: mechanism.

For this purpose I have broken the lifting" rod 17, and have pivoted it by means of the swinging arm 21 on a locking plate 22, attached to a convenient portion of the frame support B, directly above the lower cone support 7. The swinging arm 21, is bent in a form of a partial U. the free end being pivotally connected to the lower end of the lifting rod 17. The swinging arm 21, has mounted thereon a pin 23,- which is adapted to register in a slot 24-, in the locking plate 22. It is thus apparent that when the pawl 16, is out of enp agrement with the notches 14, on the under side of the work arm 15, of the lever 11. the sides of the U of the swinging arm 21, will be.

retained by the registration of the pin 23 in the end of the slot 24 in an approximately vertical position. Pivoted'to a point on the U shaped sw nging; arm 21 directly above the lowerend of the support 7. when the swinging arm 21 is in set position, is the auxiliary lifting; rod 26. This is provided with a jack screw 27, for conveniently varying its length. The outer end of the lower cone support 7. contains the vertical enclosed slot 28. The lower end of the auxiliary lifting; rod 26, is provided with a pin 29, projecting; at right angles therefrom for'loose registration in the enclosed slot 28. The pin 29. projects through the slot 28, and is securely locked in place by means of the washer 30, and nut 3i, on the opposite side of the lower (one support I. It thus apparent that when the lower cone raising dotting mechanism set position with the pin 23 in engagementwith the slot 24, in the locking plate 22, the lower cone support is free to drop vertically the approximate length of the enclosed slot 28 on its outer end as the belt breaks. t is also apparent that the lower cone may be raised for doiiing purposes as usual.

The tripping lever 20, is suitably fulcrumed on a rod 35, projecting from the frame support B. The outer end of the lower cone support 7, is provided with the tripping extension 36, into which is threaded the tripping bolt 37. It is thus apparent that as the cone belt 6 stretches, proper adjustment may be made in the auxiliary liftingz rod 26, and the tripping; bolt 37. Immediately beneath the lower end of the tripping bolt 37, is the inner arm 38 of the tripping lever 20.

I employ means to effectually brake the upper cone shaft and the connected parts of the drive which T will now explain. On the upper cone shaft conveniently above the inner arm 38, of the tripping lever 20, I mount the pulley 4-1. on an extension 42. from the frame support 1" is the brake lever 43. To the end of the short arm 4-4, of the brake lever 4-3, l attach one end of the brake band 45. The hralre band 45, is a flat band preferably made out of resilient metal, although other material may be employed, and surrounds the face flange of the'pulley 42, the other end thereof being attached to the long arm 46 of the brake lever 4-3. The brake'rod 47, connects the ends of the long arm 4-6, of the brake lever 43, to the inner arm 38, of the tripping lever 20. It is thus apparent that as the inner arm 38, of the tripping lever 20, is tripped by the falling of the lower cone support 7. on the breal -e of the belt. it willppull down the long: arm 46 oi. the bake lever and the end of the brake band 45. attached thereto, and push.

up the end of the bralre band a .taehed to the sl'iort arm 44; of the brake lever -43, thus clampinr' the bralrv band 45 around the pulle and. quickly braking and stopping the upper cone shaft. The brake band is kept out of contact with the pulley 41 when not in by means of the spring; 48.

Suitabl mounted in l'iearines on the driving end. c support and the frame supand C", is the tr e'ger shaft 50. i'arin Jr the tn 1' 'ng lever 20, v rests on the trigger shaft. rd is thereon by the resilient pressure of mg 40. atedin C, of the fly ew 51, for v tying the Suitably fulin section D lever 52, the arm of which is attached to the trigger 50. The upper arm of said. lever is le e tu m? the tri erumed on a, frame extension of the frame a hell crank lower shaft- Suitably fulcrumed connected by means of therod 53 adjustable in length by means of thejack screw 54, to the power arm 55, of a lever 56, fulcrumed on a bracket 57, depending from, the top plate 10, of the frame. To the Weight arm 58 of said lever are attached the weights 59. By varying the size of the weights 59, and by varying the adjustment of the rod 53 on the power arm 55, of the lever 56 it is obvious that the thrust .of the trigger shaft may be varied.

An extension 60, projects upwards from the lever 56. The shipper rod 61 is provided with a sleeve 62. Secured by means of the nuts 63 in a vertical slot 64; in a downwardly projecting extension 65 of the sleeve 62, is the pin 66, adapted to be contacted by the extension 60 of the lever 56. It is obvious that as the weights 59 shift the lever 56, the extension 60, bearing against the pin 66, will operate to throw theshipper rod 61 and belt 67 from the tight pulley 69, to the loose pulley 70. By varying the position of the pin 66 in the slot 64, it is obvious that the throw of the rod may be varied so. as to provide for variations in the size of the belt 7. Eluitably secured to the trigger shaft 50, adjacent to the outer arm 39 of the tripping lever 20, is the locking sleeve 7 3. The outer arm 39, of the tripping lever 20, normally bears laterally against the side 7% of the sleeve 7 3, and retains the trigger shaft 50, the lever 56, the weights 59 and shipper rod 61 in normal position. However, when the belt 5 breaks, the lower cone support 7, drops sufliciently to lower the inner arm 88 of the tripping lever 20, and to raise the outer arm 39 of the tripping lever 20. above the sleeve 73. The weights 59 then forcibly shift the trigger shaft 50 to the right, and as explained above, shut off the power by shifting the shipper rod 61 and drive belt 67. As previously explained, the lowering ofthe inner arm 38 of the tripping lever 20, simultaneously causes a breaking means to be ap plied to the upper cone and its adjacent parts.

jecting link 78, to the end of thetrigger shaft 50. A bracket is suitably attached to the belt guard 81. and thebrake lever 82 is pivoted thereon. The opposite end ofthe brake lever 82 is connected with the brake shaft 77. by the link rod 84; and arm 85.

Mounted on the upper. surface of the brake lever 82 is the brake shoe 83, formed to cone.

end of the brake band attached thereto and .pushing up the end of the brake band atsharp thrust of the trigger shaft 50 to the I right l) the brake shaft 77 is sharply partially revolved and the brake shoe 83, is

forcibly pressed against the balance wheel 75, which is fastto the drive shaft 4., thus effectually braking the drive shaftand its connected parts.

In Fig. 4 is shown a modified form of braking means which may be readily constructed on newlymanufactured machines. I mount the pulley 86 on the main drive shaft 84: inside the balance wheel 75, and around the pulley I attach the novel type of brake shown above for braking the upper The brake lever 87, is suitably fulcrnmed on an extension from the frame end support 2. The end of the long arm 88,- of the brake lever. is suitably linked with the rod 89 and link 90 to the brake shaft 77. One end of the brake band 91. is attached to the long arm 88 of the brake lever. the band itself is passed circumferentially around the pulley 86, and the other end is attached to the short arm .92 of the brake lever 87. The spring 93 preventsthe brake band from contacting the pulley 86, when binding pressure is removed. from the band 91. It isapparent that when a thrust is exerted on the trigger shaft, downward pressure will be brought to bear on the long arm 88 of the bralre lever. pulling down the tached to the short arm 92 of the lever 87 causing circumferential pressure on the whole outer surface of the pulley 86, and effectually braking the drive shaft and its connected parts. i

In operation. when the cone belt 6 breaks, the lower cone support 7 drops sufficiently to triptheinner arm of the tripping lever 20. as explained in detail above. This causes the brake band 45 to break the upper cone drive shaft andits connected parts. As the outer arm 39,. of the trippinglever 20, is raised free of the locking sleet e73. the weights 59. through. the connecting levers 56 and 52. cause the triggershaft 50.to be sharply shifted to the right. As explained in detail above. the upwardly projecting extension 60. of the lever 56. moves the shipper rod 51 and shifts the belt 67 to the loose pulley. at the same instant that an effectual. braking means is applied to the drive shaft of the frame as explained above.

To reset the stop motionrinsert a new belt of a desired length between the. cones and lift up the weights 59: as all the parts are solidlv connected by rods or levers, the

locking sleeve 73. onthe' trigger shaft 5O,

will be automatically shifted to its proper position adjacent to the outer arm 39, of the force the outer arn 89 brake the upper cone shaft.

tripping lever 20, and the springs will of the lever 20 into proper position to hold the trigger shaft and weights 59, in set position, and automatically raise the inner arm 38 of the tripping lever 20, releasing the braking means on the upper cone, as the braking means are taken off the drive shaft. It is obvious that this automatic resetting is not possible where chains are employed. As the shipper rod is not directly connected to the w ig ht, it apparent that the frame may be started and stopped I dependently of the stop motion.

. It understood that the invention is not limited to the specific en'ibodii'nent shown, and that various deviations may be made therefrom without departing from the spirit and scope of the appended claims.

What I claim new and desire to secure as Letters Patent is:

'1. In fly frames, the combination of the upper and lower cones of the differential mechanism, a cone belt, a. lower cone support pivoted so as to drop on the breaking" of the cone belt, a tripping lever adapted to be tripped by the pivoted cone support, and to release the trigger shaft on the breaking ofthe cone belt, braking; means attached to one arm of the tripping lever adapted to trigger shaft,

Ymeans adapted to forcibly shift the trigger shaft when released by the tripping lever, means connected to the trigger shaft adapted to shift the shipper rod on breakage of the cone belt, and a braking; means attached to the driving: end of the fly frame connected to the trirzs'er shaft, and adapted on the forcible shifting! of the trigger shaft to brake the drive shaft.

2. In fly frames, the combination of the upper and lower cones of the differential mechanism. a cone belt, a lower cone sup port pivoted so as to drop on the breaking of the cone belt, a tripping: lever adapted to be tripped by the pivoted cone support, and to release the trigrrfer shaft on the break age of the cone belt, a trigger shaft, means adapted to forciblyshift the trigger shaft when released by the tripping lever, means connected to the tr ggy er shaft.- adapted to shift the shipper rod on breakae e of the cone belt. and a brakinrr means attached to the driving end of the fly frame connected to the triee'er shaft, and adapted on the forcible shifting of the trigger shaft to brake the drive shaft.

ln fly frames. the combination, of the upper and lower cones of the diiferential mechanism, a cone-belt, a lower cone upporting; means adapted torelcase theti K r shaft on breaka of the cone belt, a tri r shaft, means'to forcibly shift the trigger" shaft when released. and shipper rod shiftin means, and :lriving shaft braking means,

both actuated by the forcible shifting of the trigger shaft. i

4. ln fly frames, the combination of the upper and lower cones of the differential mechanism, a cone belt, a lower cone support pivotally attached to the fly frame, a vertical enclosed slot in the outer end of said support adaptedto receive a pin projecting from the depending rod of the lower cone raisingdofling means, a lower cone raising dotting means, an adjustable arm on the end of the lower cone support adapted to trip the inner arm of the tripping lever, a locking plate to hold the lower cone raising dofhng means in set position, a tripping lever fulcrumed on the fly frame, a pulley attached to the upper cone shaft, a lever fulcrumed on the. frame near said pulley a resilient bra ke band surrounding said pulley, one end thereof being attached to the short arm of said lever, the other end being attached to the long arm of said lever, a spring? adapted to hold the brake band avay from the pulley when not in use, a rod connecting the long arm of said lever to the inner arm of the tripping lever, atri shaft, a sleeve attached to the trigger shaft adapted to contact the outer arm of the tripping lever and to lock the trigger shaft. aspriug' adapted to retain the long; arr. of the tripping lever on the trigger shaft. a bell. crank lever fulcrumed on the frame, the lower arm thereof being connected to one end of the trigger shaft, a lever fulcrumed on the top plate of the frame, the power arm thereof being connected by an adjustable rod to the upper arm of the bell crank lever, weights attached to the weight arm of said lever, an upwardly projecting extension from said lever adapted to engage an adjustable projection extendingfrom a sleeve on the shipper roe, a shipper rod, a brake shaft suitably mounted on and extending laterally across the driving frame end support of the fly frame, a link connecting the end of the trigger shaft with the brake shaft, and braking means suitably linked to the brake shaft adapted to brake the main drive shaft.

5. In fly frames, the combination of the upper and lower cones of the differential mechanism. a cone belt, a lower cone support pivotally attached to the fly frame, a vertical enclosed slot in the outer end of said support, adapted to receive a pin projecting from the depending rod of the lower cone raising: dotting:- means, a lower cone raising dofiing; means, an adjustable arm on the end of the lower cone support adapted to trip the inner arm of the tripping lever, a locking plate to hold the lower cone raisingdolliugr means in set position. a tripping 1 er fnlcriuned on the fly frame. a pulley attached to the upper cone shaft, a, lever fulcrumed on the frame near said pulley, a resilient brake band surrounding said pulley, one end thereof being attached to the short arm of said lever, the other end he- 1 ing attached to the long arm of saidlever,

the tripping lever and to lock the trigger shaft, a bell crank lever fulcrumed on the frame the lower arm thereof being connected to one end of the trigger shaft, a lever fulcrumed on the top plate of the frame, the power arm thereof being connected by an adjustable rod to the upper arm of the bell crank lever, weights attached to the weight arm of said lever, an upwardly pro jecting extension from said lever adapted to engage an adjustable projection extending from a sleeve on the shipper rod, a shipper rod, a brake shaft suitably mounted on and extending laterally across the driving end frame support of the fly frame, a link connecting the end of the trigger shaft with the brake shaft, a pulley mountedon the main drive shaft, a brake lever fulcrumed on the end of the frame near said pulley, a resilient brake band surrounding said pulley, one end thereof being attached to the short arm of said lever, and the other end thereof to the long arm of said lever, a spring adapted to hold the brake band away from the pulley when not in use, an arm on the brake shaft underneath said lever, and a link rod connecting the long arm of said lever with said arm.

6. In fly frames, the combination of the upper and lower cones of the differential mechanism, a cone belt, a lower cone support pivotally attached to the fly frame, a vertical enclosed slot in the outer end of said support, adapted to receive a pin projecting from the depending rod of the lower cone raising doting means, a lower cone raising doifmg means, an adjustable arm on the end of the lower cone support adapted to trip the inner arm of the tripping lever, a locking plate to hold the lower cone rais ing dotting means in set position, a tripping lever fulcrumed on the fly frame, a pulley attached to the upper cone shaft, a lever fulcrumed on the frame near said pulley, a resilient brake band surrounding said pulley, one end thereof being attached to the short arm of said lever, the other end being attached to the long arm of said lever, a spring adapted to hold the brake band away from the pulley when not in use, a rod connecting the long arm of said lever to the inner arm of the tripping lever, a trigger shaft, a sleeve attached to the trigger shaft adapted to contact the outer arm of the tripping lever and tolock the trigger shaft, and means to forcibly shift the trigger shaft when released by the tripping lever.

7. In fly frames, thecombination of the upper andlower cones of the differential mechanism, a cone belt, a lower cone support pivotally attached to the fly frame,a vertical slot in the outer end of said support, adapted to receive a pin projecting from the depending rod of t lelower cone raising doifing means, a lower cone raising dofiing means, an adjustable arm on the end'ofthe lower cone support adapted to tripthe'inner arm of the tripping lever, a locking plate to hold the lower cone raising doiiing means in set position, a tripping lever fulcrunied on the fly frame, a trigger shaft, a sleeve attached to the trigger shaft adapted to contact the outer arm of the tripping lever and to lock the trigger shaft, and means to forcibly shift the trigger shaft when released by the tripping lever.

8. In fly frames, in combination, a trigger shaft, means to release said trigger shaft by the dropping of the lower cone on the breaking of the cone belt, a bell crank lever fulcrumed on the frame, the lower arm thereof being connected to one end of the trigger shaft, a lever fulcrumed in the top plate of the frame, the power arm thereof being connected by an adjustable rod to the upper arm of the bell crank lever, weights attached to the weight arm of said lever, an upwardly projecting extension from said lever adapted to engage an adjustable projection extending from a sleeve on the shipper rod, a shipper rod, a brake shaft suitably mounted on and extending laterally across the driving end frame support of the fly frame, a link connecting the end of the trigger shaft with the brake shaft, and braking means suitably linked to the brake shaft, adapted to brake the main drive shaft.

9. In fly frames, in combination, a trigger shaft, means to release said trigger shaft by the dropping of the lower cone on the breaking of the cone belt, a bell crank lever fulcrumed on the frame, the lower arm thereof being connected to one end of the trigger shaft, a lever fulcrumed on the top plate of the frame, the power arm thereof being connected by an adjustable rod to the upper arm of the bell crank lever, weights attached to the weight arm of said lever, an upwardly projecting extension from said lever adapted to engage an adjustable projection extending from a sleeve on the shipper rod, ashipper rod, a brake shaft suitably mounted on and extending laterally across the driving end frame support of the fly frame, a link connecting the end of the trigger shaft with the brake shaft, a pulley mounted on the main drive shaft, a brake lever fulcrume'd on the end of the frame near said pulley, a resilient brake band surrounding said pulley, one end thereof being attached to the short arm of saidlever,

and the other end thereof to the long arm of said lever, a spring adapted to hold the brake band away from the pulley when not in use, an arm on the brake sha t't underneath said lever, and a link rod connecting the long arm oi said lever with said arm.

10I11 stop motions for fly frames, which function on the breal tage ot the cone belt, in combination with means to shift the belt from a tight to a loose pulley on the main drive shaft on breakage ot the cone belt, of resilient braking means to brake the upper GIACOMO PUGCI. 

